rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	2-....: (1 GPs behind) idle=24a/1/0x4000000000000004 softirq=13348/13402 fqs=5222 
	(t=10500 jiffies g=9733 q=241)
NMI backtrace for cpu 2
CPU: 2 PID: 10010 Comm: syz-executor.4 Not tainted 5.4.0-syzkaller #0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x183/0x1cf kernel/rcu/tree_stall.h:254
 print_cpu_stall kernel/rcu/tree_stall.h:455 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:529 [inline]
 rcu_pending kernel/rcu/tree.c:2827 [inline]
 rcu_sched_clock_irq.cold+0x509/0xc02 kernel/rcu/tree.c:2271
 update_process_times+0x2d/0x70 kernel/time/timer.c:1726
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:167
 tick_sched_timer+0x53/0x140 kernel/time/tick-sched.c:1310
 __run_hrtimer kernel/time/hrtimer.c:1514 [inline]
 __hrtimer_run_queues+0x364/0xe40 kernel/time/hrtimer.c:1576
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1638
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:filter_irq_stacks mm/kasan/common.c:56 [inline]
RIP: 0010:save_stack+0x2e/0x90 mm/kasan/common.c:70
Code: 40 00 00 00 48 89 e5 41 54 41 89 fc 48 8d bd f8 fd ff ff 48 81 ec 00 02 00 00 e8 9d d0 b1 ff 85 c0 89 c6 74 24 8d 78 ff 31 d2 <48> 8b 8c d5 f8 fd ff ff 89 d0 48 81 f9 08 17 80 87 72 26 48 81 f9
RSP: 0018:ffff88802d7097a0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff888028ea7c00 RCX: ffffffff81b1e2c3
RDX: 0000000000000001 RSI: 000000000000001d RDI: 000000000000001c
RBP: ffff88802d7099a8 R08: 0000000000000002 R09: ffff888015224a90
R10: fffffbfff13d4e58 R11: ffffffff89ea72c7 R12: 0000000000082a20
R13: ffff888028ea7800 R14: 0000000000000000 R15: ffff88802d000c40
 set_track mm/kasan/common.c:77 [inline]
 __kasan_kmalloc mm/kasan/common.c:510 [inline]
 __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:483
 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:518
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slab.c:3262 [inline]
 kmem_cache_alloc_node_trace+0x143/0x750 mm/slab.c:3592
 __do_kmalloc_node mm/slab.c:3614 [inline]
 __kmalloc_node_track_caller+0x3d/0x70 mm/slab.c:3629
 __kmalloc_reserve.isra.0+0x40/0xf0 net/core/skbuff.c:141
 __alloc_skb+0x10b/0x5e0 net/core/skbuff.c:209
 alloc_skb include/linux/skbuff.h:1049 [inline]
 ndisc_alloc_skb+0x13c/0x340 net/ipv6/ndisc.c:417
 ndisc_send_rs+0x39b/0x720 net/ipv6/ndisc.c:683
 addrconf_rs_timer+0x30f/0x6e0 net/ipv6/addrconf.c:3879
 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers kernel/time/timer.c:1773 [inline]
 __run_timers kernel/time/timer.c:1740 [inline]
 run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786
 __do_softirq+0x262/0x98c kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x19b/0x1e0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x4f/0x80 kernel/locking/spinlock.c:199
Code: c0 68 34 13 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 12 6a 96 01 00 74 20 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 e7 ab d3 f9 65 8b 05 18 54 85 78 85 c0 74 06 41
RSP: 0018:ffff8880146178d0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff122668d RBX: ffff888015224200 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff888015224a94
RBP: ffff8880146178d8 R08: ffff888015224200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802d737380
R13: ffff88802ca306c0 R14: 0000000000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3124 [inline]
 finish_task_switch+0x147/0x750 kernel/sched/core.c:3224
 context_switch kernel/sched/core.c:3388 [inline]
 __schedule+0x8e9/0x1f30 kernel/sched/core.c:4081
 preempt_schedule_irq+0xb5/0x160 kernel/sched/core.c:4338
 retint_kernel+0x1b/0x2b
RIP: 0010:exit_aio+0x0/0x3a0 fs/aio.c:861
Code: e9 1e ee ff ff e8 50 93 de ff e9 49 ee ff ff e8 a6 92 de ff e9 77 ee ff ff 4c 89 f7 e8 99 92 de ff e9 be ee ff ff 0f 1f 40 00 <55> 48 89 e5 41 57 48 8d 85 18 ff ff ff 41 56 49 89 fe 41 55 48 c1
RSP: 0018:ffff888014617af8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff888015224200 RBX: 0000000000000000 RCX: 1ffff110028c2f45
RDX: 0000000000000000 RSI: ffffffff8190977c RDI: ffff888075240dc0
RBP: ffff888014617b28 R08: 1ffffffff12426a4 R09: fffffbfff12426a5
R10: fffffbfff12426a4 R11: ffffffff89213527 R12: ffff888075240dc0
R13: ffff8880752412c0 R14: ffff888015224200 R15: 0000000000000000
 exit_mm kernel/exit.c:485 [inline]
 do_exit+0x806/0x2ef0 kernel/exit.c:784
 do_group_exit+0x135/0x360 kernel/exit.c:895
 get_signal+0x47c/0x24f0 kernel/signal.c:2734
 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:160
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:278 [inline]
 do_syscall_64+0x676/0x790 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a759
Code: 8b 6c 24 20 48 83 c4 28 c3 48 8b 1d 61 4f 67 01 48 8d 0c 19 48 8d 49 ff 48 ff cb 48 f7 d3 48 21 d9 e9 0c ff ff ff 48 8b 6c 24 <20> 48 83 c4 28 c3 48 89 d8 b9 00 00 40 00 e8 14 4f 00 00 4c 89 c0
RSP: 002b:00007fe9d4fc5c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000004 RBX: 000000000071bf00 RCX: 000000000045a759
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000040
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fe9d4fc66d4
R13: 00000000004aec17 R14: 00000000006f1cb0 R15: 00000000ffffffff